Weekly Extreme Sudoku Competition for Dec 20 to Dec 26

Number 170, Extreme
by Crosswords Ltd. July puzzle packs Now Out!. Thanks for supporting our site.
Future Puzzle - will be submitted on the relevant day
1 2 3 4 5 6 7 8 9
A
B
C
D
E
F
G
H
J
  2           8  
  8     7 1     5
9     3 8       2
      5 6     3  
5               4
  6     3        
7       1 2     8
4     8 5     9  
  9